A hinge structure special for a toilet cover and a toilet

Abstract

The application discloses a hinge structure special for a toilet cover, which comprises a fixing cylinder, a clutch ring, an elastic member and a rotary cylinder; the rotary cylinder is internally provided with a connecting part, the clutch ring is sleeved on the connecting part, the elastic member is arranged in the rotary cylinder, one end of the elastic member is in abutment with the rotary cylinder, and the other end of the elastic member is in abutment with one end of the clutch ring; the other end of the clutch ring is provided with a first tooth part, one end of the fixing cylinder is provided with a sliding ring, the sliding ring is provided with a first engaging opening, the toilet cover can drive the rotary cylinder to rotate so that the first tooth part is separated from the first engaging opening, and the rotary cylinder can drive the clutch ring to rotate. Accordingly, the application further provides a toilet related to the above-mentioned hinge structure special for a toilet cover. By using the application, the plastic parts can also bear a large torque, the opening and closing angle requirement of the toilet cover is met, the part cost is reduced, and the weight is lightened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of toilet cover hinge, in particular to a hinge structure special for toilet cover and a toilet. BACKGROUND

[0002] In order to ensure the safety in use, the toilet cover and the seat of the toilet have strength requirements: after the toilet cover or the seat is opened, a certain horizontal pressure is applied to the front edge, and falling is not allowed. This requires that the hinge of the toilet cover or the seat can withstand a torque of about several dozen newton meters without failure.

[0003] In order to meet the stringent force requirement, a metal hinge is generally used to meet the strength requirement. Although the metal hinge part has the advantage of high strength, it also has the disadvantages of high cost, heavy weight, and the need for anti-corrosion treatment. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a hinge structure special for toilet cover and a toilet, which can withstand a larger torque using plastic parts, meet the opening and closing angle requirements of the toilet cover, reduce the cost of parts, and reduce the weight.

[0005] In order to solve the above technical problems, the present application provides a hinge structure special for toilet cover, which is arranged at the connection between the toilet cover and the base, and comprises a fixed cylinder, a clutch ring, an elastic member and a rotating cylinder; the rotating cylinder is provided with a connecting part, the clutch ring is sleeved on the connecting part, the elastic member is arranged in the rotating cylinder, one end of the elastic member abuts against the rotating cylinder, and the other end of the elastic member abuts against one end of the clutch ring; the other end of the clutch ring is provided with a first tooth part, one end of the fixed cylinder is provided with a sliding ring, the sliding ring is provided with a first engagement port, the first tooth part can be engaged with or separated from the first engagement port to move the clutch ring along the extension direction of the elastic member, the toilet cover can drive the rotating cylinder to rotate to separate the first tooth part from the first engagement port, and the rotating cylinder can drive the clutch ring to rotate to make the first tooth part slide along the upper end surface of the sliding ring.

[0006] As an improvement of the above scheme, the first engagement port is recessed downward at a predetermined position of the upper end surface of the sliding ring.

[0007] As an improvement of the above scheme, the other end of the clutch ring is further provided with a plurality of circumferentially distributed second tooth parts, one end of the fixed cylinder is provided with a plurality of circumferentially distributed second engagement ports, the second engagement ports are located at the periphery of the sliding ring, the second tooth parts can be engaged with or separated from the second engagement ports, and the upper end of the second engagement port is lower than the upper end surface of the sliding ring.

[0008] As an improvement of the above-mentioned scheme, one of the second engaging openings coincides with the sidewall of the first engaging opening, the first toothed part is larger than the thickness of the sliding ring and can be simultaneously clamped into the first engaging opening and the corresponding one of the second engaging openings.

[0009] As an improvement of the above-mentioned scheme, the thickness of the first toothed part is larger than the second toothed part.

[0010] As an improvement of the above-mentioned scheme, the first and second engaging openings each include first and second opposite sides, the first side is perpendicular to the upper end surface of the sliding ring or the first side is obliquely arranged towards the second side, the second side is obliquely arranged away from the first side, and the bottom surface of the first toothed part is parallel to the sliding ring.

[0011] As an improvement of the above-mentioned scheme, the clutch ring is connected to the connecting part through a first spline.

[0012] Correspondingly, the application further provides a toilet including a base, an upper shell, a toilet cover and the toilet cover special hinge structure, the upper shell is installed on the base, the upper shell is hinged to the toilet cover through the toilet cover special hinge structure; wherein the other end of the fixed cylinder is fixedly connected with the upper shell, and the rotary cylinder is connected with the toilet cover through a second spline.

[0013] As an improvement of the above-mentioned scheme, the toilet further includes a rotary encoder, the end surface of the rotary cylinder is provided with a plurality of connecting holes, the bottom surface of the rotary encoder is provided with a plurality of buckles, and the buckles are clamped in the connecting holes.

[0014] As an improvement of the above-mentioned scheme, the toilet further includes a damper, the inner sidewall of the fixed cylinder is provided with a plurality of convex bodies, and the damper is arranged in the fixed cylinder and abuts against the convex bodies.

[0015] The beneficial effects of the application are as follows:

[0016] When the toilet cover is closed, the elastic member is in a compressed state, the first tooth part is separated from the first engaging port, the first tooth part abuts against and slides along the upper end surface of the sliding ring, and the toilet cover can drive the rotary cylinder to rotate; when the toilet cover is opened to the maximum, the elastic member is in an extended state, the first tooth part is engaged with the first engaging port, thereby clamping the clutch ring so that it cannot rotate, and further causing the rotary cylinder and the toilet cover to be unable to rotate. The toilet cover special hinge structure can withstand a larger torque even if plastic parts are used, meets the opening and closing angle requirements of the toilet cover, reduces the part cost and weight compared with the scheme of using a metal hinge to meet the strength requirement, and does not need to additionally set a corrosion-resistant layer. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the toilet cover special hinge structure of the present application;

[0018] Figure 2 is a perspective view of the toilet cover special hinge structure of the present application when the rotary cylinder is half cut;

[0019] Figure 3 is a perspective view of the rotary cylinder in the Figure 1

[0020] Figure 4 is another perspective view of the rotary cylinder in the Figure 1

[0021] Figure 5 is a perspective view of the clutch ring in the Figure 2

[0022] Figure 6 is a perspective view of the fixed cylinder in the Figure 2

[0023] Figure 7 is a perspective view of the toilet in the present application;

[0024] Figure 8 is an installation view of the fixed cylinder in the toilet of the present application;

[0025] Figure 9 is an exploded view of the upper shell, the toilet cover special hinge structure and the toilet cover in the toilet of the present application;

[0026] Figure 10 is a perspective view of the rotary cylinder in the Figure 9 DETAILED DESCRIPTION

[0027] ​​​​​To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this document are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0028] Combination Figures 1-6 As shown, this invention provides a hinge structure specifically for toilet seats, located at the connection between the toilet seat 6 and the base 7. It includes a fixed cylinder 1, a clutch ring 2, an elastic element 3, and a rotating cylinder 4. The rotating cylinder 4 has a connecting portion 41, the clutch ring 2 is sleeved on the connecting portion 41, and the elastic element 3 is located inside the rotating cylinder 4. One end of the elastic element 3 abuts against the rotating cylinder 4, and the other end abuts against one end of the clutch ring 2. The other end of the clutch ring 2 has a first tooth 2. 1. One end of the fixed cylinder 1 is provided with a sliding ring 11. The sliding ring 11 is provided with a first engagement port 12. The first tooth 21 can engage or disengage with the first engagement port 12 so that the clutch ring 2 can move along the extension and retraction direction of the elastic member 3. The toilet seat 6 can drive the rotary cylinder 4 to rotate so that the first tooth 21 disengages from the first engagement port 12. The rotary cylinder 4 can drive the clutch ring 2 to rotate so that the first tooth 21 slides along the upper end face of the sliding ring 11.

[0029] It should be noted that in the toilet seat hinge structure of the present invention, when the toilet seat 6 is closed, the elastic element 3 is in a compressed state, the first tooth 21 disengages from the first engagement port 12, the first tooth 21 abuts against the upper end face of the sliding ring 11 and can slide along the upper end face of the sliding ring 11, and the toilet seat 6 can drive the rotary cylinder 4 to rotate. When the toilet seat 6 is opened to the maximum, the elastic element 3 is in an extended state, the first tooth 21 engages with the first engagement port 12, thereby locking the clutch ring 2 so that it cannot rotate, thereby causing the rotary cylinder 4 and the toilet seat 6 to be unable to rotate. This toilet seat hinge structure can withstand a large torque even if plastic parts are used, and meets the opening and closing angle requirements of the toilet seat 6. Compared with the solution of using metal hinges to meet the strength requirements, it reduces the cost of parts and lightens the weight, and does not require an additional anti-corrosion layer.

[0030] like Figure 6 As shown, the first engagement 12 is recessed downward at a predetermined position on the upper end face of the sliding ring 11. When the toilet seat 6 is opened to its maximum (the first tooth 21 engages in the first engagement 12), if a horizontal pushing force is continued to be applied to the toilet seat 6, the sliding ring 11 abuts against the first tooth 21, thereby preventing the toilet seat 6 from easily coming loose.

[0031] CombinationFigures 5-6 As shown, the other end of the clutch ring 2 is also provided with a plurality of circumferentially distributed second tooth portions 22, and one end of the fixed cylinder 1 is provided with a plurality of circumferentially distributed second engaging openings 13, which are located on the periphery of the sliding ring 11, and the upper end of the second engaging opening 13 is lower than the upper end surface of the sliding ring 11, so that the first tooth portion 21 is not blocked by the upper end 13 of the second engaging opening 13 when sliding, and the second tooth portion 22 can be engaged or disengaged with the second engaging opening 13. When the toilet cover 6 is opened to the maximum, the torque force from the clutch ring 2 is evenly borne by the one-to-one corresponding engagement of the second tooth portion 22 and the second engaging opening 13, and the torque force is dispersed to each part of the part, thereby increasing the maximum torque force that can be borne between the clutch ring 2 and the fixed cylinder 1, and avoiding easy damage to the two parts. In addition, when the toilet cover 6 is opened to the maximum (the first tooth portion 21 is engaged in the first engaging opening 12), if the horizontal pushing force continues to be applied to the toilet cover 6, the rotating cylinder 4 will also be subjected to a vertical upward pulling force. Since the upper end of the second engaging opening 13 is lower than the upper end surface of the sliding ring 11, the pulling force acting on the rotating cylinder 4 is not only acting on the contact surface between the second tooth portion 22 and the outer side surface of the sliding ring 11, but also acting on the contact surface between the inner side surface of the clutch ring 2 and the outer side surface of the sliding ring 11, which can avoid the second tooth portion 22 being easily pulled off.

[0032] Correspondingly, one of the second engaging openings 13 coincides with the side wall of the first engaging opening 12, the thickness of the first tooth portion 21 is greater than the thickness of the sliding ring 2, and the first tooth portion 21 can be simultaneously clamped into the first engaging opening 12 and the corresponding one of the second engaging openings 13, thereby simplifying the structure and reducing the processing difficulty. Secondly, the increase in the thickness of the first tooth portion 21 can increase the force bearing area of the left and right side surfaces of the first tooth portion 21 and reduce the pressure intensity on the left and right side surfaces of the first tooth portion 21, thereby avoiding easy damage to the first tooth portion 21.

[0033] Further, in order to further increase the thickness of the first tooth portion 21 to increase the force bearing area of the left and right side surfaces of the first tooth portion 21 and reduce the pressure intensity on the left and right side surfaces of the first tooth portion 21, the thickness of the first tooth portion 21 is greater than the thickness of the second tooth portion 22, so that the first tooth portion 21 can only be engaged with the first engaging opening 12. In this embodiment, the thickness of the first tooth portion 21 is preferably equal to the sum of the width of the first engaging opening 12 and the width of the second engaging opening 13, so that the force bearing area of the left and right side surfaces of the first tooth portion 21 is maximum. Correspondingly, the thickness of the second tooth portion 22 is preferably equal to the width of the second engaging opening 13, so that the force bearing area of the left and right side surfaces of the second tooth portion 22 is maximum.

[0034] In combination Figures 5-6As shown, the first engaging port 12 and the second engaging port 13 each include a first side 121 and a second side 122 arranged oppositely, the first side 121 is perpendicular to the upper end surface of the sliding ring 11 or the first side 121 is arranged obliquely towards the second side 122, and the second side 122 is arranged obliquely away from the first side 121. When the closestool cover 6 is opened to the maximum, the first tooth part 21 engages with the first engaging port 12, and the second tooth part 22 engages with the second engaging port 13 one by one, and when the clutch ring 2 rotates counterclockwise, the first side 121 blocks the corresponding first tooth part 21 or second tooth part 22, causing the clutch ring 2 to be unable to continue to rotate; when the closestool cover 6 is opened to the maximum, the clutch ring 2 rotates clockwise, and the first tooth part 21 slides out of the first side 121 to disengage from the first engaging port 12, and the second tooth part 22 does the same, thereby ensuring that the closestool cover 6 can be rotated to close. In this embodiment, in order to reduce the processing difficulty, the first side 121 is preferably perpendicular to the upper end surface of the sliding ring 11.

[0035] Further, in order to enable the clutch ring 2 to rotate smoothly, the bottom surface 211 of the first tooth part 21 is parallel to the upper end surface of the sliding ring 11, thereby avoiding the closestool cover 6 from being stuck when opening or closing. In this embodiment, in order to unify the shape and facilitate production, the bottom surface of the second tooth part 22 is also preferably parallel to the upper end surface of the sliding ring 11.

[0036] In combination Figure 3 And Figure 5 As shown, in order to enhance the load bearing capacity between the clutch ring 2 and the connecting part 41, the clutch ring 2 and the connecting part 41 are connected through the first spline 411, and the torque force from the connecting part 41 is evenly borne through the first spline 411, and the torque force is dispersed to each part of the part, thereby improving the maximum torque force that can be borne between the clutch ring 2 and the connecting part 41, and avoiding easy damage to the two parts. In this embodiment, the clutch ring 2 and the connecting part 41 are preferably connected through a rectangular spline to further enhance the load bearing capacity between them.

[0037] In combination Figures 7-10As shown, correspondingly, the application also provides a toilet comprising a base 7, an upper shell 5, a toilet cover 6 and the toilet cover special hinge structure described above, the upper shell 5 is installed on the base 7, and the upper shell 5 is hinged with the toilet cover 6 through the toilet cover special hinge structure; in this embodiment, the other end of the fixed cylinder 1 is arranged in the upper shell 5 and is fixedly connected with the upper shell 5 through a screw, the toilet cover 6 is provided with a hinge cylinder 61, and the rotating cylinder 4 is arranged in the hinge cylinder 61 and is connected with the hinge cylinder 61 through the second spline 42, and in addition, in order to further stabilize, the rotating cylinder 4 is also fixedly connected with the hinge cylinder 61 through a screw. In this embodiment, the second spline 42 is preferably a rectangular spline.

[0038] In combination Figure 4 and Figure 10 As shown, the toilet further comprises a rotary encoder 8, a plurality of connecting holes 43 are arranged on the end face of the rotating cylinder 4, the bottom surface of the rotary encoder 8 is provided with a plurality of buckles 81, the buckles 81 are clamped in the connecting holes 43, which facilitates disassembly and ensures stable connection between the rotary encoder 8 and the rotating cylinder 4.

[0039] In combination Figure 6 and Figure 10 As shown, the toilet further comprises a damper 9, the damper 9 is used for dissipating the energy of the rotation of the toilet cover 6, so as to avoid that the toilet cover 6 is damaged by impact when the rotation energy is too large when closing to the position or opening to the maximum, a plurality of convex bodies 14 are arranged on the inner side wall of the fixed cylinder 1, and the damper 9 is arranged in the fixed cylinder 1 and abuts against the convex bodies 14, so that the damper 9 is stably arranged in the fixed cylinder 1.

[0040] In summary, by using the application, the plastic parts can also withstand a large torque, meet the opening and closing angle requirements of the toilet cover or seat ring, reduce the cost of parts and reduce the weight.

[0041] The above is the preferred embodiment of the application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the application, and these improvements and refinements are also regarded as the protection scope of the application.

Claims

1. A hinge structure specifically for toilet seats, located at the connection between the toilet seat and the base, characterized in that, Includes a fixed cylinder, clutch ring, elastic element, and rotary cylinder; The rotary drum is provided with a connecting part, the clutch ring is sleeved on the connecting part, the elastic element is provided in the rotary drum, one end of the elastic element abuts against the rotary drum, and the other end of the elastic element abuts against one end of the clutch ring; The clutch ring has a first tooth at one end, and the fixed cylinder has a sliding ring at one end. The sliding ring has a first engagement port. The first tooth can engage or disengage with the first engagement port to allow the clutch ring to move along the extension and retraction direction of the elastic element. The toilet seat can drive the rotary cylinder to rotate so that the first tooth disengages from the first engagement port. The rotary cylinder can drive the clutch ring to rotate so that the first tooth slides along the upper end face of the sliding ring. When the toilet seat is closed, the elastic element is in a compressed state, the first tooth disengages from the first engagement, the first tooth abuts against the upper end face of the sliding ring and can slide along the upper end face of the sliding ring, and the toilet seat can drive the rotary drum to rotate. When the toilet seat is fully opened, the elastic element is in an extended state, and the first tooth engages with the first engagement port to lock the clutch ring so that it cannot rotate, thereby preventing the rotary drum and toilet seat from rotating. The other end of the clutch ring is also provided with a plurality of circumferentially distributed second teeth, and one end of the fixed cylinder is provided with a plurality of circumferentially distributed second engagement ports. The second engagement ports are located on the periphery of the sliding ring, and the upper end of the second engagement port is lower than the upper end surface of the sliding ring. The second teeth can engage or disengage with the second engagement ports. The clutch ring and the connecting part are connected by a first spline.

2. The hinge structure for toilet seats according to claim 1, characterized in that, The first joint is recessed downward at a predetermined position on the upper end face of the sliding ring.

3. The hinge structure for toilet seats according to claim 1, characterized in that, One of the second engagement ports coincides with the sidewall of the first engagement port, and the first tooth is larger than the thickness of the sliding ring and can simultaneously engage the first engagement port and one of the corresponding second engagement ports.

4. The hinge structure for toilet seats according to claim 2, characterized in that, The thickness of the first tooth is greater than that of the second tooth.

5. The hinge structure for toilet seats according to claim 1, characterized in that, The first and second joints each include a first side and a second side facing each other. The first side is perpendicular to the upper surface of the sliding ring, or the first side is inclined toward the direction of the second side, and the second side is inclined away from the first side. The bottom surface of the first tooth is parallel to the sliding ring.

6. A toilet, characterized in that, The invention includes a base, an upper shell, a toilet seat, and a toilet seat-specific hinge structure as described in any one of claims 1 to 5, wherein the upper shell is mounted on the base and is hinged to the toilet seat via the toilet seat-specific hinge structure. The other end of the fixed cylinder is fixedly connected to the upper shell, and the rotary cylinder is connected to the toilet seat through a second spline.

7. The toilet according to claim 6, characterized in that, It also includes a rotary encoder, wherein the end face of the rotary drum is provided with multiple connection holes, and the bottom surface of the rotary encoder is provided with multiple buckles, which are engaged in the connection holes.

8. The toilet according to claim 6, characterized in that, It also includes a damper, and the inner wall of the fixed cylinder is provided with multiple protrusions. The damper is located inside the fixed cylinder and abuts against the protrusions.

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